51636216601 has 8 divisors (see below), whose sum is σ = 52225659360. Its totient is φ = 51046979808.

The previous prime is 51636216559. The next prime is 51636216623. The reversal of 51636216601 is 10661263615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51636216601 - 2³³ = 43046282009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51636216301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484390 + ... + 581296.

It is an arithmetic number, because the mean of its divisors is an integer number (6528207420).

Almost surely, 2^51636216601 is an apocalyptic number.

It is an amenable number.

51636216601 is a deficient number, since it is larger than the sum of its proper divisors (589442759).

51636216601 is an equidigital number, since it uses as much as digits as its factorization.

51636216601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102983.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 51636216601 in words is "fifty-one billion, six hundred thirty-six million, two hundred sixteen thousand, six hundred one".